In the 21st century Science and Technology (IPTEK) is experiencing very rapid development which requires students to have skills in that century. In addition, one of the objectives of learning physics in the 2013 curriculum is to have a good understanding of concepts and principles. However, in reality there are still obstacles in students' understanding of concepts that are still low, including dynamic fluid material. The solution given is to develop interactive multimedia based on cognitive conflict. This study aims to determine the characteristics of interactive multimedia design and determine its validity. This type of research is development research using the Plomp development model which is special to the preliminary research and prototyping stages to the expert review. Preliminary research data obtained from needs analysis through filling out a questionnaire by 3 physics teachers and the validity of the data obtained from 3 physics lecturers. The instruments in this study were teacher questionnaires, self-evaluation sheets and expert validity sheets. Data were analyzed descriptively. This research produces interactive multimedia with characteristics set according to 4 syntaxes of cognitive conflict-based learning models using the adobe animate cc 2019 application. Multimedia is designed to improve students' conceptual understanding of dynamic fluid materials and justify 4C skills. the results of self-evaluation show that multimedia is in the very good category.

This research was conducted to reconstruct the sustainability-oriented learning stages’ design on fire-retardant bamboo and its effect on self-efficacy and perceptions of prospective chemistry teacher students. This study uses mix method with Exploratory Sequential Design, which is guided by the Model of Educational Reconstruction (MER) with the following stages: (1) content structure analysis, (2) research on students’ pre-conceptions, and (3) learning design development. The instruments used were text analysis sheets, interview guidelines, validation sheets for the design of the learning stages, and questionnaires on student self-efficacy and perceptions. The topic used to develop the learning stages is the concept of ionic liquids as fire-retardant agents. The research data are scientific conceptions related to learning issues and chemical ideas. In addition, students’ pre-conceptions regarding learning topics were obtained, followed by results validating the design of learning stages as well as the ability of students’ perceptions and selfefficacy. The scientist’s conception was analysed using the content qualitative analysis method, resulting in a concept map. The result of students’ pre-conception on fire-retardant bamboo interview showed that the topic was new to the students. The percentage of students’ self-efficacy abilities increased to 88.9%, which is in the excellent category. The students’ perceptual abilities rate increased to 92.8%, which is in the agreed category. Thus, the design of sustainabilityoriented learning stages on fire-retardant bamboo can increase the self-efficacy and perceptions of prospective chemistry teacher students. The design of the learning stages can help prospective teacher students integrate chemical concepts with technological engineering in learning. Using sustainable materials in the learning stages can foster sustainability literacy in students and support the creation of sustainability-oriented education in the higher education environment

This research was conducted to produce teaching materials in the form of e-modules on alternative fuels based on green chemistry fuel material. The presentation of material and visualization that used in this e-module based on green chemistry includes the losses caused by the use of fuel oil and the solutions offered to overcome them by the presence of alternative fuels based on green chemistry. This research uses the Design Based Research method with the ADDIE model. The e-module is tested for its feasibility. The results of the feasibility test show 94-100% of the respondents agreed to all the criteria in the e-module. These results indicate that the green chemistry-based alternative fuel e-module that has been made is feasible to use. This research is useful to increase student awareness about the importance of protecting environment through chemistry learning process.